Due to the complex nature of PG diagnosis, we postulate that this simple mnemonic will have the most utility with nondermatology clinicians encountering a lesion suspicious for PG. By assisting in differential diagnosis formation, this mnemonic may lead to timelier biopsies and treatment initiation. At that time, the utilization of the more precise criteria set forth by Jockenhöfer et al will allow for the dermatologist to more definitively establish a diagnosis of PG.4 The limitations of this concept mirror those of other studies and include lower sensitivities in patients with an atypical PG presentation. In addition, by omitting some histopathologic and treatment response criteria in the proposed mnemonic, the specificity, inadvertently, will be reduced. However, most of the omitted criteria are not available on initial evaluation. Despite these limitations, we believe this is a useful approach with simplicity that facilitates adoption into clinical practice.
CONCLUSION
The 5 P’s of PG offers a useful mnemonic for the diagnosis of
PG, particularly in the initial clinical diagnosis prior to skin biopsy
and treatment.
DISCLOSURES
No author has conflicts of interest relevant to the manuscript.
There are no funding sources to disclose.
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AUTHOR CORRESPONDENCE
Brett C. Neill MD bneill@kumc.edu